Aftertreatment system housing



FIG. 1 is a top, front, left perspective view of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a left elevation view thereof; and,

FIG. 7 is a right elevation view thereof.

The broken lines in the drawings depict unclaimed environmental subject matter, are for illustrative purposes only, and form no part of the claimed design. 

CLAIM We claim the ornamental design for an aftertreatment system housing, as shown and described. 